CVE-2026-5260
HIGH EPSS 47.3%
Published May 26, 20261mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
Published May 26, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA key exchange to a server using an RSA key backed by a PKCS#11 token, could trigger a short heap overread. This memory corruption vulnerability could lead to information disclosure.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
47.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-1284
References 7
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:20611
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:20612
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:20613
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:26319
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:26409
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-5260
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2467450
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.